Świątek, Władysław. “Digitization of Administration in Poland on the Example of Services Rendered by the Social Insurance Institution (ZUS)”. Scientific Journal of Bielsko-Biala School of Finance and Law 26, no. 4 (December 30, 2022): 131–140. Accessed November 21, 2024. https://asej.eu/index.php/asej/article/view/687.